UniversalMediaServer / UniversalMediaServer/UniversalMediaServer

DVDISOs not scaled and color spaced correctly and are converted to H.264

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bug:confirmed
Dominant language
Java
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Merged PRs (30d)
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Description

Referring to that issue from @zappie on the forum:
http://www.universalmediaserver.com/forum/viewtopic.php?f=5&t=2379&p=33879#p33878
That give black borders and stuttering issue to the user.
I suspect that all these unecessary and incorrect conversions come from the fact that mounted DVDs are not identified as DVD.

DEBUG 2017-10-17 22:02:07.543 [mplayer-3-1] net.pms.io.OutputTextConsumer ID_VIDEO_ASPECT=0.0000

DEBUG 2017-10-17 22:02:07.543 [mplayer-3-1] net.pms.io.OutputTextConsumer Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
DEBUG 2017-10-17 22:02:07.543 [mplayer-3-1] net.pms.io.OutputTextConsumer ID_VIDEO_ASPECT=1.7778
DEBUG 2017-10-17 22:02:07.543 [mplayer-3-1] net.pms.io.OutputTextConsumer VO: [null] 720x576 => 1024x576 BGR 24-bit

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Research direction

Start with the reported MPlayer debug output and trace how mounted DVDs are identified and routed through scaling, color-space handling, and H.264 conversion. Reproduce the mounted-DVD playback case; done means DVD content avoids unnecessary conversion and plays without black borders or stuttering.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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